Feeding-roller for lath-mills.



T. C. MORRIS.

FEEDING ROLLER FOR LATH MILLS.

APPLICATION FILED R0v.2 3, 1917.

' mums. I PatentedSept. 17,1918.

I flue/12 a} 7 ,7 Mama 677mm:

NITE II?- s'rA'rEs PAE are THOMAS C. MORRIS, OF ATLANTA, GEORGIA, ASSIGNOR TO PETER VREDENBURGH,

OF VREDENBURGH, ALABAMA.

FEEDING-ROLLER, FOR LATE-MILLS.

and useful Improvement in Feeding-Rollers for Lath-Mills,of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains tomake and use the same, referencebeing had to the accompanying drawings, forming part of this specification.

This invention relates to lumber manufacture, andpertains specifically to certain improvements in a feeding roller for lath mills, of the general type illustrated in the patent to'Thomas A. Coleman, No. 1,233,985,

' granted July 117, 1907.

The purposesof the present invention are toimprove generally'upon the rollers. of the Coleman type designed for use in lath mills to theend of increasing their strength, compactness, accuracy, and security with which the adjustable work-engaging elements are retained inthe carrier ordrum.

wAs is'wellknowmin the operation of lath mills, a piece of material is fed by feed rollers against a pluralityof saws which ripit into a number of thin strips to form laths, The rollers are subjected 'to great stress from the operation of the saws upon the material, which have the tendency to kick the material back through the rollers, with probability of injury to the workman feeding the machine. Accordingly, the work-engaging elements of the rollers are subjected to high pressure as well as vibration, which renders ithighly important that they be securely held and supported throughout their length,and that the various adjustable parts of the roller. be securely interlocked and. heldinoperative arrangement. Furthermore, .due to the disposal of such rollers in the machine, is desirable that there-be noprojection or'overhang of the end of the shaft beyond: the face of the roller.v It is the purpose of my invention to meet all of these various requirements,and other objects will be obvious or pointed out hereinafter. 7 V t r In the "accompanying. drawings,- I have Specification of Letters Patent.

Patented Sept. 17, 1918.

"Application filed November 23, 1917. Serial no} 203,584.

shown'an embodiment of my invention in whichr Figure 1 represents a longitudinal section through one of my improved feed rollers; Fig. 2 a front elevation; and a Fig. 3 a side elevation of one of the engaging elements or tooth bars.

As iswell known in the art, the Coleman feed roller of the typedescribed in the patent aforementioned, is characterized by the employment of individually removable workenga-ging elements or tooth bars which are suitably held in a drum for cooperation with the work, and which, by manipulation of various adjustable parts of the device, may be loosened so as to permit their removal and replacement when injured. It is this feature uponwhich my present improve ment is predicated. V

In the form shown, let the reference character 1 designate.the-customary shaft upon which the roller is carried and through which it is drivenl At a'point' apart-from the extremity of this shaft is keyed a sleeve 2 shaped to providean annular shoulder l and bearing portion 5. The extremity of the shaft is screw-threaded to receive an adjustable sleeve 6 shaped to form an annular clamping shoulder portion? disposed coun ter-facing the shoulder portion'a gand a hear ing portion 8 of diameter equal to thebearing portion 5. Rotatably mounted on the bearing portion .5 and shaped to abut the clamping shoulder at is a clamping collar 9, and similarlydisposed with reference to the bearing portion 8 andthe clamping shoulder 7 is a second clamping collar 10.

;Mounted on the bearing portions 5 and 8 intermedlate said clampmg collars 1s a drum 1am support them with their work-engaging portions extending beyond the periphery of the drum. The length of these bars is drum,,and adjacent their extremities they are formed, at their inner margins, with reentrant portions 14?, leaving projecting such as to extend beyond the faces of the portions 14' extending beyond the reentrant portions for a portion of the width of the bar. Both the rentrant portions is and the projecting portions la extend beyond the faces of the drum member, and the clamping collars 9 and 10 are suitably formed to accommodate and engage them. The collars 9 and 10 are formed with annular undercut portions or grooves 15 shaped to accommodate the rentrant portions 14, while the peripheries of said clamping collars are formed with longitudinal slots 16 disposed to register with slots 12, for the accommodation of the extending portions 14: The end faces of the drum member 11 are dished or undercut for the accommodation of thick portions 17 of the clamping collars.

The assembly of the device is obvious from the illustrations. The engaging elements let are placed in the slots 12, the extending portions 14* being seated in the slots 16 of the clamping collar 9, and the reentrant portions 1 1 being engaged in the undercut portion 15 of said collar. The clamping collar 10 is then placed in engagement with the other extremities of the tooth bars in similar fashion, and the adjustable sleeve 0 is then turned up against the shoulder of the clamping collar'lO. The pressure thereby exerted upon clamping collar 10 is transmitted to the engaging elements which, by virtue of the engagement of the rentrant portions 14? in the undercut portions 15 of the clamping collars 9 and 10, are drawn into their seats and securely clamped therein. Throughout. their length, intermediate the faces of the roller, the engaging elements are firmly supported and held, by virtue of their engagement, throughout most of their length, in the slots 12, and at their extremities, in the slots 16. lVhen it is desired to remove any of the engaging elements, the adjustable sleeve 6 is backed off and the clamping collar 10 slid away from the drumlO to free the extremities of the bars.

By virtue of this construction, not only are the engaging elements firmly secured and supported throughout their lengths, but the necessity for any overhang or projection of the shaft beyond the face of the roller is obviated, and the peripheral face of the roller is traversed throughout its entire extent by the engaging elements, so that there is no area at the extremity of the roller in which a narrow strip would be permitted to ride. Consequently, this construction effectively prevents the kicking back of pieces of work which it is feeding, and thereby forms an effective safeguard for the operator of the machine. The construction, moreover, provides an exceptionally strong clevice, and one in which it is impossible for the ,various parts to get out of alinement so as to bind the tooth bars or destroy the accuracy of the feed.- The support of the drum 11 upon the bearing portions 5 and 8 holds all of these parts in proper alinement and effectively prevents the transmittal of any bending movements to the shaft be tween the clamping elements 2 and 6, thereby preservingthe alinement of the latter. In addition to its strength and compactness, the device admits of the desired adjustments with the greatest facility.

lVhile I believe the form which I have illustrated herein and described above to be the best form of the invention, I am aware that it may be embodied in other forms, and that it may be modified in various particulars. It is my purpose and intention that the appended claims comprehend all such other forms and modifications.

What I claim is: V

1. A feeding roller comprising a shaft, a pair of sleeves mounted thereupon, one of said sleeves being'fixed to the shaft and the other sleeve being adjustable toward and away from the fixed sleeve, a clamping collar positioned upon each sleeve and having a shouldered bearing thereupon, a drum mounted on the sleeves between the clamping collars, said drum and clamping collars having registering longitudinal slots dis posed at intervals about their peripheries, and work engaging elements removably seated in said slots and extending continuously from the outer face of one clamping collar to the outer face of the other collar.

' 2. A feeding'rollerf comprising a shaft, a pair of sleeves mounted thereupon, one of said sleeves being fixed to the shaft and the other sleeve beingadjustable toward and away from thefixed sleeve, a clamping collar positioned upon each sleeve and having a shouldered bearing thereupon, a, drum mounted on the sleeves between the clamping collars, said drum and lamping collars having registering longitudinal slots disposed at intervals about their peripheries, work engaging elements removably seated in said slots and extending continuously from the outer face of one clamping collar to the outer face of the other collar, and the ends of said work engaging elements and the inner faces of the clamping collars having inner engaging shoulders. V

3. A feeding roller comprising a shaft, a pair of sleeves mounted thereupon, one of said sleeves being fixed to the shaft and the other sleeve being adjustable toward and away from the fixed sleeve, a clamping collar positioned upon eaohsleeve and having a shouldered bearing thereupon, a drum mounted on the sleeves between the clamping collars, said drum and clamping collars having registering longitudinal slots disand work engaging elements removably seated in said slotsand extending continuously from the outer face of oneclamping collar to the outer face of the other collar, the end portions of said work engaging elements being provided with angular shoulders and'the inner faces of the clamping collars being provided with grooves 'adapted to receive said angular shoulders. 4. A feeding roller :comprisi'ng' a shaft having a threaded portion, asleeve rigidly fixed onthe shaft adjacent to said threaded portion, a sleeve screw-seated on the threadcopies of this pltent may be obtained for the sleeves between the clamping collars, the

periphery of which drum is provided with V a series of longitudinally disposed slots, the

peripheries of the clamping collars'being provided with longitudinally disposed slots which are adapted to coincide with the slots I in the drum, the inner faces of the clamping collars adjacent" to their peripheries being provided with shoulders, and work engaging elements removably seated in the slots in g the drum and clamping collars, the end portions of which work engaging elements are provided with shoulders which are adapted to engage in the grooves inthe collars.

' In testimony whereof I hereunto afiix my signature, this fifth day V T. C. MORRIS.

flveec'ente each, by addressing the commissioner ot'rato'ntl Washington, D. 0.

of November, 1917. j 

